9 CE: The Rhine River is established as the boundary between the Latin and German speaking worlds, following the defeat of the Roman army, under the command of Varus, at the Battle of the Teutoburg Forest.

30 CE - 476 CE: Egypt remains a province of the Roman Empire.

43 CE: Romans invade Britain under Aulus Plautius.

43 CE - 47 CE: Romans conquer South Britain and claim the territory as part of Roman Empire.